Is she not in the show Walking Dead?
Sounds like she was in 1 episode. Definitely not a major character.
I’m an actor and I just checked her out at the IMDB.com (IMDB Pro.com) and she doesn’t have any credits to speak of. Which means she probably did a lot of extra work. Anybody can do extra work, they’re nothing more than a prop that eats. If you had a speaking role of any kind it would be on IMDB.com.